<!DOCTYPE html>
<html>
<head>
<script>
function go() {
 if (document.referrer) {
  window.location = document.referrer;
 } else {
  history.go(-1);
 }
}
</script>
</head>
<body onload="go()">
<iframe src="//${domain}/id.html"></iframe>
</body>
</html>
